目的了解唐山市丰南区市售蔬菜有机磷农药残留情况。方法随机采集24个品种共240份新鲜蔬菜,用气相色谱法按照国标GB/T 5009.20-2003对16种有机磷农药残留量进行检测。结果唐山市丰南区市售蔬菜有机磷农药残留总体检出率为32.9%,总体超标率为28.8%。油菜和菜花是有机磷农药残留最严重的,超标率均达到80.0%;使用最广泛且严重超标的农药是甲胺磷和对硫磷,超标率分别达到5.8%和7.1%;叶(花)菜类有机磷农药污染最严重,超标率达到51.1%。结论唐山市丰南区市蔬菜有机磷农药污染问题依然很严峻,应加强蔬菜农药残留的监管。 Objective To understand the residual organic phosphorus pesticides in Fengnan District of Tangshan City. Methods Totally 240 fresh vegetables from 24 cultivars were collected randomly and 16 kinds of organophosphorus pesticide residues were detected by gas chromatography in accordance with national standard GB / T 5009.20-2003. Results The overall detection rate of organophosphorus pesticide residues in vegetables sold in Fengnan District of Tangshan City was 32.9%, with the total exceeding standard rate of 28.8%. Rape and cauliflower are the most serious residues of organophosphorus pesticides, exceeding the standard rate of 80.0%. The most widely used and seriously overbased pesticides are methamidophos and parathion, exceeding the standard rates of 5.8% and 7.1%, respectively. Vegetable organophosphate pesticide pollution is the most serious, exceeding the standard rate of 51.1%. Conclusion The problem of vegetable organophosphorus pesticide contamination in Fengnan District of Tangshan is still very serious, and the supervision of vegetable pesticide residues should be strengthened.